First week of September brings rain chances to San Antonio

This means slightly cooler temps, too!

Rain chances for the San Antonio area; Valid Thursday, September 3rd
Rain chances for the San Antonio area; Valid Thursday, September 3rd (KSAT 12)

SAN ANTONIO – September 1 marks the start of “meteorological” fall, which is defined as the months of September, October, and November. And just the idea of a crisp, cool autumn morning sounds wonderful given how hot our summer in San Antonio has been. So far, the Alamo City has seen 35 days of 100 degree weather, with Del Rio clocking in 79 days in the triple-digits!

September Stats

Of course, it won’t magically become chilly outside. In fact, September is usually characterized by a gradual “cool” down. San Antonio’s average high temperature on September 1 is 94 degrees, but by the end of the month the average high is 86 degrees. Morning lows at the beginning of the month average to a muggy 73 degrees, but by the end of September it’s usually a comfy start -- in the mid-60s!

September is usually characterized by a gradual cool down. (Copyright 2020 by KSAT - All rights reserved.)

Rain Chances This Week

It will be a “messy” weather pattern as we start September, with rain chances in the forecast through the weekend. Here’s what you need to know:

  • Showers and storms will continue to be possible Thursday & Friday
  • While widespread severe weather isn’t expected, places that get a storm may experience lightning and gusty winds
  • Because of the scattered nature of the expected showers and storms, not everyone will see rain
  • If your yard is lucky enough to get a storm, an inch or more of rainfall is not out of the question
  • Added cloud cover with spotty rain will allow temps to be a bit cooler - but still warm - with highs in the low- to mid-90s through the end of the workweek

Stay Informed

You can follow along with Your Weather Authority as we continue monitor this week’s rain chances by downloading the KSAT Weather Authority app for Apple or Android. Be sure to allow notifications for updates, including livestreams from KSAT meteorologists.

Latest Video Forecast

Adam's Evening Update: Thursday 9/3/20
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